Tianjin Estel Electronic Science and Technology Co.,Ltd
TIANJIN ESTEL ELECTRONIC SCIENCE AND TECHNOLOGY CO.,LTD (ESTEL(GUANGDONG) TECHNOLOGY CO., LTD) We are the professoinal supplier of outdoor telecom cabinet, air conditioner, heat exchanger, and telecom
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ET4805K-2U
1.Product Introduction
ET4805K-2U sub-rack power supply with 2U height compact design can meet critic application needs of fiber and microwave transmission, access device and switch. The system maximum power is 90A, with AC/battery/load MCBs. The cables are rear accessing.
2.Feature
Standard 19-inch width, versatile;
2U highly compact design, saving space and installation cost;
Intelligent management, online remote maintenance, reduce site access and maintenance costs;
Perfect battery management to extend battery life;
Provides a variety of communication ports LAN/RS232/RS485 interface, LAN-SNMP, TCP/IP to achieve flexible networking and remote monitoring;
The rectifier module and controller can be hot-swappable, convenient online maintenance;
Wide input voltage range (90~300Vac).
3.Product Applications
Wireless base station;
Network transmission;
Base stations along expressways and rail transit.
4.Specification
| Category | ET4805K-2U | |
| System | Dimension(mm) | 482.0(W)×310.0(D)×2U(H) |
| Weight | ≤20kg(without rectifier module) | |
| Cooling mode | Natural cooling | |
| Installation mode | Installed on 19-inch rack or inside the cabinet | |
| IP Grade | IP20 | |
| AC Input Distribution | Rated Input Voltage | 220Vac (L-N) |
| Input voltage range | 90 ~ 300Vac | |
| Input capacity (AC) | 1×63A/2P | |
| AC SPD | / | |
| AC Output Distribution | Output capacity (AC) | / |
| DC Distribution
| Output voltage | -42~-58VDC, rated value: -53.5VDC |
| Maximum capacity | 5.4kW | |
| Battery connection | 2×40A/1P | |
| Load breakers | BLVD:1×20A/1P+5×10A/1P | |
| Rectifier | Efficiency | ≥94%@peak value |
| Rated power | 1800W (Input Voltage:176～290Vac) | |
| Working temperature | -40℃~+75℃(fully output below 50℃) | |
| Dimension | 95.3mm(W)×230mm(D)×41.5mm(1U/H) | |
| Cooling mode | Forced cooling with fan | |
| Controller | Signal input | 3AI(2 Battery temp., 1 ambient temp), 7 DI(SPD, 6 common DI) |
| Alarm output | 6 dry contact | |
| Communication port | LAN/RS232/RS485 interface, LAN-SNMP, TCP/IP | |
| Display mode | LCD | |
| Environment
| Operating temperature | -40℃~+75℃ (When operating at full load, the temperature is not higher than 50℃) |
| Storage temperature | -40℃~+75℃ | |
| Operating humidity | 0%~95%(non-condensing) | |
| Altitude | 0~3000m (If the altitude is within the range of 2000m to 3000m, the maximum operating temperature decreases by 1℃ as the altitude increases by 200m.) | |